公开(公告)号：US20240184031A1

公开(公告)日：2024-06-06

申请号：US18440180

申请日：2024-02-13

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH ,  Ravi Kumar KOMANDURI ,  David KLEINMAN ,  Vaibhav MATHUR ,  David MANLY

IPC: G02B5/30 ,  G02B5/08 ,  G02B27/01 ,  G02F1/1335

CPC classification number: G02B5/305 ,  G02B5/0808 ,  G02B5/3058 ,  G02B5/3083 ,  G02B6/0076 ,  G02B27/0172 ,  G02F1/133528 ,  G02B2207/101

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

公开(公告)号：US20240126091A1

公开(公告)日：2024-04-18

申请号：US18542491

申请日：2023-12-15

Applicant: MAGIC LEAP, INC.

Inventor： Vaibhav MATHUR ,  Joshua Naaman HADDOCK ,  Ted DIEHL ,  Chulwoo OH ,  Clinton CARLISLE

IPC: G02B27/01 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1343 ,  G02F1/1368

CPC classification number: G02B27/0172 ,  G02F1/133305 ,  G02F1/133528 ,  G02F1/133553 ,  G02F1/13363 ,  G02F1/134327 ,  G02F1/1368 ,  G02B6/0075

Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

公开(公告)号：US20230251492A1

公开(公告)日：2023-08-10

申请号：US18297191

申请日：2023-04-07

Applicant: Magic Leap, Inc.

Inventor： Ivan Li Chuen YEOH ,  Lionel Ernest EDWIN ,  Nicole Elizabeth SAMEC ,  Nastasja U. ROBAINA ,  Vaibhav MATHUR ,  Timothy Mark DALRYMPLE ,  Jason SCHAEFER ,  Clinton CARLISLE ,  Hui-Chuan CHENG ,  Chulwoo OH ,  Philip PREMYSLER ,  Xiaoyang ZHANG ,  Adam C. CARLSON

IPC: G02B27/01 ,  G02B27/00 ,  G06T19/00 ,  H04N13/279 ,  H04N13/341 ,  H04N13/395 ,  H04N13/383 ,  H04N13/344 ,  H04N13/398 ,  G06T15/00

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G06T19/006 ,  H04N13/279 ,  H04N13/341 ,  H04N13/395 ,  H04N13/383 ,  H04N13/344 ,  H04N13/398 ,  G06T15/00 ,  G02B2027/0178 ,  G02B2027/0147 ,  G06T2210/36 ,  H04N2213/002 ,  G02B2027/0185 ,  G02B2027/0134

Abstract: Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include monitoring eye orientations of a user of a display system based on detected sensor information. A fixation point is determined based on the eye orientations, the fixation point representing a three-dimensional location with respect to a field of view. Location information of virtual objects to present is obtained, with the location information indicating three-dimensional positions of the virtual objects. Resolutions of at least one virtual object is adjusted based on a proximity of the at least one virtual object to the fixation point. The virtual objects are presented to a user by display system with the at least one virtual object being rendered according to the adjusted resolution.

公开(公告)号：US20230152622A1

公开(公告)日：2023-05-18

申请号：US18154834

申请日：2023-01-15

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH

IPC: G02F1/1335 ,  G02B27/42 ,  G02B5/18 ,  G02B27/01

CPC classification number: G02F1/133504 ,  G02B27/4205 ,  G02B27/4272 ,  G02B5/1847 ,  G02B5/1833 ,  G02B27/0172 ,  G02F1/133524 ,  G02B5/3058

Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers have liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.

公开(公告)号：US20250093661A1

公开(公告)日：2025-03-20

申请号：US18959036

申请日：2024-11-25

Applicant: Magic Leap, Inc.

Inventor： Ivan Li Chuen YEOH ,  Lionel Ernest EDWIN ,  Nicole Elizabeth SAMEC ,  Nastasja U. ROBAINA ,  Vaibhav MATHUR ,  Timothy Mark DALRYMPLE ,  Jason SCHAEFER ,  Clinton CARLISLE ,  Hui-Chuan CHENG ,  Chulwoo OH ,  Philip PREMYSLER ,  Xiaoyang ZHANG ,  Adam C. CARLSON

IPC: G02B27/01 ,  G02B27/00 ,  G06T15/00 ,  G06T19/00 ,  H04N13/279 ,  H04N13/341 ,  H04N13/344 ,  H04N13/383 ,  H04N13/395 ,  H04N13/398

Abstract: Methods and systems for depth-based foveated rendering in a display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include monitoring eye orientations of a user of the display system. A fixation point can be determined based on the eye orientations, the fixation point representing a three-dimensional location with respect to a field of view. Location information of virtual object(s) to present is obtained, with the location information including three-dimensional position(s) of the virtual object(s). A resolution of the virtual object(s) can be adjusted based on a proximity of the location(s) of the virtual object(s) to the fixation point. The virtual object(s) are presented by the display system according to the adjusted resolution(s).

公开(公告)号：US20240319508A1

公开(公告)日：2024-09-26

申请号：US18733144

申请日：2024-06-04

Applicant: Magic Leap, Inc.

Inventor： Asif SINAY ,  Nizan MEITAV ,  Chulwoo OH ,  Barak FREEDMAN ,  Michael Anthony KLUG ,  Adam C. CARLSON

IPC: G02B27/01 ,  G02B27/42

CPC classification number: G02B27/0172 ,  G02B6/0023 ,  G02B6/005 ,  G02B27/4205 ,  G02B2027/0138 ,  G02B2027/0178

Abstract: A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into the waveguide(s) and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within the waveguide(s) out of the waveguide(s) and direct the light to the camera. The at least one coupling element may include a diffractive optical element having optical power. Additionally or alternatively, the at least one coupling optical element may have a coupling area, for coupling light into the waveguide(s), the coupling area having an average thickness in a range from 0.1 to 3 millimeters across and/or may have a pinhole sized and/or slit shaped coupling area.

公开(公告)号：US20240280860A1

公开(公告)日：2024-08-22

申请号：US18648448

申请日：2024-04-28

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH ,  Ravi Kumar KOMANDURI

IPC: G02F1/1337 ,  G02B27/01 ,  G02F1/01 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347

CPC classification number: G02F1/133757 ,  G02F1/0136 ,  G02B27/0172 ,  G02F1/133528 ,  G02F1/133633 ,  G02F1/133638 ,  G02F1/133761 ,  G02F1/133776 ,  G02F1/13378 ,  G02F1/13471

Abstract: A switchable optical assembly comprises a switchable waveplate configured to be electrically activated and deactivated to selectively alter the polarization state of light incident thereon. The switchable waveplate comprises first and second surfaces and a first liquid crystal layer disposed between the first and second surfaces. The first liquid crystal layer comprises a plurality of liquid crystal molecules that are rotated about respective axes parallel to a central axis, where the rotation varies with an azimuthal angle about the central axis. The switchable waveplate additionally comprises a plurality of electrodes to apply an electrical signal across the first liquid crystal layer.

公开(公告)号：US20240184113A1

公开(公告)日：2024-06-06

申请号：US18414100

申请日：2024-01-16

Applicant: Magic Leap, Inc.

Inventor： Roy Matthew PATTERSON ,  Chulwoo OH ,  Ravi Kumar KOMANDURI ,  Charles Scott CARDEN ,  Michael Nevin MILLER ,  Vikramjit SINGH ,  Shuqiang YANG

IPC: G02B27/01 ,  G02F1/29

CPC classification number: G02B27/0172 ,  G02B6/0076 ,  G02F1/29 ,  G02B2027/0112 ,  G02F1/294

Abstract: A display device includes a waveguide assembly comprising a waveguide configured to outcouple light out of a major surface of the waveguide to form an image in the eyes of a user. An adaptive lens assembly comprises a switchable waveplate assembly. The switchable waveplate assembly includes quarter-wave plates on opposing sides of a switchable liquid crystal layer, and electrodes on the quarter-wave plates in the volume between the quarter-wave plates. The electrodes can selectively establish an electric field and may serve as an alignment structure for molecules of the liquid crystal layer. Portions of the adaptive lens assembly may be manufactured by roll-to-roll processing in which a substrate roll is unwound, and alignment layers and liquid crystal layers are formed on the substrate as it moves towards a second roller, to be wound on that second roller.

公开(公告)号：US20240036516A1

公开(公告)日：2024-02-01

申请号：US18482896

申请日：2023-10-08

Applicant: Magic Leap, Inc.

Inventor： Ravi Kumar KOMANDURI ,  Chulwoo OH

IPC: G03H1/02

CPC classification number: G03H1/0276 ,  G03H1/0244 ,  G03H2250/38 ,  G03H2222/31 ,  G03H2222/36 ,  G03H2222/34

Abstract: An optical master is created by using a nanoimprint alignment layer to pattern a liquid crystal layer. The nanoimprint alignment layer and the liquid crystal layer constitute the optical master. The optical master is positioned above a photo-alignment layer. The optical master is illuminated and light propagating through the nanoimprinted alignment layer and the liquid crystal layer is diffracted and subsequently strikes the photo-alignment layer. The incident diffracted light causes the pattern in the liquid crystal layer to be transferred to the photo-alignment layer. A second liquid crystal layer is deposited onto the patterned photo-alignment layer, which subsequently is used to align the molecules of the second liquid crystal layer. The second liquid crystal layer in the patterned photo-alignment layer may be utilized as a replica optical master or as a diffractive optical element for directing light in optical devices such as augmented reality display devices.